public class WuCan {
    public static void main(String[] args) {
        UseColder(()->{
            System.out.println("ah");
        });
    UseEnable((int a)->{
        System.out.println(a);
    },33);
    UseEat((int s,int r)->{
    return s*r;
    },22,44);
        System.out.println("s*r");
    }

    public static void UseColder(Colder cloder){
        cloder.show();
    }
    public static void UseEnable(Fly fly,int su){
        fly.show1(su);
    }
    public static void UseEat(Eat eat,int st,int stt){
        eat.show2(st,stt);
    }
}
interface Colder{
    void show();
}
interface Fly{
    void show1(int a);
}
interface Eat{
    int show2(int s,int r);
}
